{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to recover keys in a blockchain?","a":"First, users need to provide authentication information, such as passwords or mnemonic phrases. This information is used to protect the security of private keys, preventing them from being  lost or stolen."}]}],"pr":"3a53d8b9ca56e29e70b6c6e46e51545aa9dbdc9cf4db20646bdcccbc427428f5"}